PMID: 24364283Dec 25, 2013Paper

Efficacy of videolaryngoscopes for nasotracheal intubation: a meta-analysis of randomized controlled trials

Masui. The Japanese journal of anesthesiology
Yoshihiro HirabayashiEiji Masaki

Abstract

Increased evidence indicates that the videolaryngoscope is useful for nasotracheal intubation. The aim of this meta-analysis is to assess the efficacy of videolaryngoscopes (Glidescope, Airtraq and Pentax-AWS) in nasotracheal intubations, comparing with that of Macintosh laryngoscopy. The systematic search, data extraction, critical appraisal, and pooled analysis were performed according to the PRISMA statement. The relative risk (RR), mean difference (MD), and their corresponding 95% confidence intervals (CIs) were calculated by the Comprehensive Meta-analysis version 2.2.040 software for dichotomous and continuous outcomes, respectively. Seven randomized controlled trials included 294 tracheal intubations by videolaryngoscopes and 253 tracheal intubations by Macintosh laryngoscopy. Videolaryngoscopes showed higher success rate (RR 1.116, 95% CI 1.021-1.220, P < 0.0155, I2 : 51%) and shorter intubation time (MD -11.9 sec, 95% CI-18.9(-) -5.0 sec, P < 0.0008, I2 84%) compared with the Macintosh laryngoscope. Our meta-analysis showed that the videolaryngoscope has an advantage over Macintosh laryngoscope in nasotracheal intubations.

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